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SN74CBT3257CPW from TI,Texas Instruments

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SN74CBT3257CPW

Manufacturer: TI

4-Bit 1-Of-2 FET Multiplexer/Demultiplexer with -2 V Undershoot Protection

Partnumber Manufacturer Quantity Availability
SN74CBT3257CPW TI 295 In Stock

Description and Introduction

4-Bit 1-Of-2 FET Multiplexer/Demultiplexer with -2 V Undershoot Protection The SN74CBT3257CPW is a high-speed TTL-compatible FET bus switch manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** 4-bit 1-of-2 FET multiplexer/demultiplexer  
- **Technology:** CMOS  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **On-State Resistance (Ron):** 5Ω (typical)  
- **Bandwidth:** 200MHz (typical)  
- **Propagation Delay:** 0.25ns (typical)  
- **Input/Output Capacitance:** 10pF (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** TSSOP (PW)  
- **Pin Count:** 16  

### **Descriptions:**  
The SN74CBT3257CPW is a high-bandwidth, low-impedance bus switch designed for multiplexing/demultiplexing digital signals. It provides bidirectional switching with minimal propagation delay and signal distortion, making it suitable for high-speed data routing applications.  

### **Features:**  
- **Low On-State Resistance (5Ω typical)**  
- **Fast Switching (0.25ns propagation delay)**  
- **TTL-Compatible Input Levels**  
- **4.5V to 5.5V Operating Voltage**  
- **Supports Both Analog and Digital Signals**  
- **Bidirectional Data Flow**  
- **Minimal Power Consumption**  
- **ESD Protection (≥2000V HBM)**  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

4-Bit 1-Of-2 FET Multiplexer/Demultiplexer with -2 V Undershoot Protection

Alternative Part Number

  • PI5C3257Q --: Pin-compatible 4-bit 2:1 multiplexer/demultiplexer bus switch with similar on-resistance and TTL-compatible control inputs, widely used as a direct functional replacement for the CBT3257 family.
  • QS3257S1G --: Quad 2:1 bus switch multiplexer/demultiplexer with low propagation delay and 5V tolerant I/O, functionally equivalent to the SN74CBT3257 and available in similar SOIC/TSSOP packages.
  • 74CBTLV3257PW --: Low-voltage 4-bit 2:1 bus switch mux/demux in TSSOP package with comparable switching characteristics and pinout, suitable as a cross-vendor alternative when 3.3V operation is acceptable.

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